Brazilian Journal of Anesthesiology
Brazilian Journal of Anesthesiology
Case Report

Awake craniotomy for eloquent pial arteriovenous fistula - Anesthetic and surgical consideration of a rare case

Márcio Cardoso Krambek, João Luiz Vitorino-Araujo, Renan Maximilian Lovato, José Carlos Esteves Veiga

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Intracranial pial Arteriovenous Fistulas (AVFs) are rare cerebral vascular lesions composed of one or more arterial connections to a single venous channel. We report a 50-year-old patient with a ruptured pial AVF located in an eloquent area. Microsurgery for pial AVF occlusion was proposed with awake craniotomy for motor function and neurological evaluation. Awake craniotomy is a technique that is especially useful for cerebral vascular lesions in eloquent areas, where an occlusion often compromises or suppresses the blood supply, culminating in ischemia with consequent transient or definitive deficits in neurological function.


Arteriovenous fistula,  Awake craniotomy,  Anesthesiology,  Vascular disorders


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